In order to develop a simple and effective activation method of low calcium fly ash concrete (FAC) and to understand their basic properties, the present paper experimentally investigates the influences of the volume of fly ash (FA), the dosage of the activator (AC) and the water to binder ratio (w/b) on the hydration, setting times and the crack-resistance properties of activated FACs. Results ...

BACKGROUND Chronic dietary K+ loading increases the abundance of large conductance (210 pS) apical K+ channels in surface cells of rat distal colon, resulting in enhanced K+ secretion in this epithelium. However, the factors involved in the regulation of these K+ channels are at present unclear. AIMS To evaluate the effect of dietary K+ loading on intracellular pH and its relation to large co...

A green approach for the preparation of water-dispersible functionalized graphene via one-step electrochemical exfoliation of graphite using 7,7,8,8-tetracyanoquinodimethane (TCNQ) anions as surface modifiers and electrolytes was described. TCNQ is an organic charge-transfer complex with electron accepting and noteworthy electrical properties. The exfoliation of graphite to a few-layer graphene...

1. Iduronosyl anhydro[1-3H] mannitol 6-sulphate (IMs), iduronosyl anhydro [1 3H] mannitol, phenyl iduronide (PhI) and 4-methylumbelliferyl iduronide have been compared as substrates for the diagnostic estimation of alpha-L-iduronidase activity present in human leucocyte and cultured skin fibroblast homogenates. The pH profile of leucocyte and fibroblast iduronidase activity was dependent on sub...

The following study deals with the characteristics of the reaction to form BaSO4 and BaCO3 from Na2SO4 and Na2CO3, respectively, using BaS as the other reactant. These reactions would theoretically increase the efficiency of the chemical recovery process in papermaking to near 100% by completely converting Na2SO4 to Na2S and Na2CO3 to NaOH. Kinetic data were collected, and it was determined tha...